System Design and Other Elements Flashcards
Business Process Design (1/4)
Transaction Processing Systems (TRS)
What is it?
B4-20
process and record the routine daily transactions necessary to conduct business
Business Process Design (2/4)
(MIS)
What does it do?
B4-20
provides users predefined reports that support effective business decisions
Business Process Design (3/4)
Decision Support Systems (DSS)
What is it?
B4-20
extension of an MIS that provides interactive tools to support decision making
–aka Expert System
Business Process Design (4/4)
Executive Information Systems (EIS)
What is it?
B4-20
provides senior executives with immediate and easy access to internal and external information to assist in strategic decision making
Systems Development Life Cycle (SDLC)
What is it?
B4-20
“A DITTO” Mnemonic
- -a framework for planning and controlling detailed activities associated with systems development
- -uses waterfall approach
Systems Development Life Cycle (SDLC)
What are the 7 steps?
B4-21
A– systems Analysis
D-- conceptual Design D-- physical Design I-- Implementation and Conversion T-- Training T-- Testing O-- Operations and maintenance
Systems Development Life Cycle (SDLC)
7 steps- “A DITTO”
What happens in System Analysis step (1)?
B4-21
- -define the nature and scope of project
- -determine technological and economic feasibility
- -identify info needs of users
- -document it
Systems Development Life Cycle (SDLC)
7 steps- “A DITTO”
What happens in Conceptual Design step (2)?
B4-21
- decide how to meet user needs
- identify and evaluate appropriate design alt
- -buying software, developing software, or outsource system development
Systems Development Life Cycle (SDLC)
7 steps- “A DITTO”
What happens in Physical Design step (3)?
B4-21
- -use conceptual design to develop specs for coding
- -identifying outputs
Systems Development Life Cycle (SDLC)
7 steps- “A DITTO”
What happens in Implementation and Conversion step (4)?
B4-22
- -install new hardware or software
- -establish controls for new system
- -testing or modifying processing procedures
Systems Development Life Cycle (SDLC)
7 steps- “A DITTO”
What happens in Training step (5)?
B4-22
- -hardware and software skills training
- -orientation to new policies and procedures
Systems Development Life Cycle (SDLC)
7 steps- “A DITTO”
What happens in Testing step (6)?
B4-22
- -test of effectiveness
- -test of capacity and backup
Systems Development Life Cycle (SDLC)
7 steps- “A DITTO”
What happens in Operations and Maintenance step (7)?
B4-22
- -periodic review
- -modify if problems arise
Who participates in the business process design? (5)
B4-23
- Management
- Accountants
- Information Systems Steering Committee
- Project Development Team
- External Parties
Participants in Business Process Design
Info. Systems Steering Committee
vs.
Project Development Team
B4-23
Info Sys. Steering Committee
–plan and oversee the information systems function and address complexities created by functional and divisional boundaries
Project Devel. Team
–responsible for the successful design and implementation of the business system